At the first time requesting data, RadClientDataSource sends multiple requests to the server. All subsequent requests for Paging, Sorting work as expected.
Hi Tom,
Thank you for reporting this problem.
After a thorough investigation, we found that the issue is related to Server Side operations such as Filtering, Paging, Sorting.
To replicate the problem, connect the ClientDataSource to a WebService/API and set the EnableServerFiltering, EnableServerPaging, EnableServerSorting properties to True.
At the moment, there is no workaround or solution that we can offer.
Regards,
Attila Antal
Progress Telerik